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Monday, July 30, 2007

Cory’s shearwater fact sheet

Calonectrisdiomedea borealis | Cory's shearwater

The Cory´s shearwater
is one of the most abundant seabirds in the Azores. About the 75% of world’s
population nests here, with the remainder nesting in Madeira, the Canaries and Berlengas. They are well
adapted to life at sea, coming to land only during reproduction (at night).
Their flight is characterised by few movements of
the wings as they glide over the waves. On land they are quite clumsy.
Individuals will often return to the same nest in which they were born and pair
for life. The male and female take turns incubating the egg for shifts of 2 to 8 days. The juveniles fledge between
late October and early November, when they are abandoned by their parents.
Juvenile mortality is high. It is estimated that 1/10 will live to reproduce.
Individuals gather in big groups, making transequatorial migrations to Brazil, Uruguay and South Africa. At sea
it is common to observe large groups feeding
in association with other marine predators such as tuna and dolphins
that drive potential prey to the surface. This species is classified as "common breeding" in the Azores.

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Futurismo has 25 years of experience whale watching and swimming with dolphins in the Azores. We operate tours from São Miguel Island on a year-round basis.

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